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Kyosho Ultima RB6 & RB6.6 Car Thread

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Old 12-21-2016, 08:46 AM   -   Wikipost
R/C Tech Forums Thread Wiki: Kyosho Ultima RB6 & RB6.6 Car Thread
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Last edit by: tobamiester
RB6.6 Kyosho America Product Page: http://www.kyoshoamerica.com/ULTIMA-...T_p_24505.html

RB6.6 Manual http://www.kyosho.com/jpn/support/in...A_RB6_6_IM.pdf

RB6.6 Kyosho Youtube https://www.youtube.com/watch?v=vW_sR667utY

MSRP $639 MAP $399.99

-------------------------------
New RB6.6 parts (compared exploded views, prices and links are Kyosho America):

Chassis:
  1. Main chassis - UM731 - $125.99
  2. Side guards - UM732 - $9.99

Battery Holder:
  1. Battery plate - UM733 - $8.99
  2. Battery foam - UM741 - $7.99

Rear Bulkheads:
  1. MM3 and Laydown - UM740 - $9.99
    • MM3 bulkhead
    • Laydown bulkhead
    • Swaybar Holders

3 Gear Transmission (MM and RM):
  1. Transmission - UM734 - $10.99
    • transmission cases
    • spacers
    • caps
    • plastic FR & RR suspension hangers

  2. Gear Cover - UM735 - $6.99

Laydown Transmission (3 and 4 gear possible):
  1. Transmission - UM736 - $10.99
    • transmission cases
    • spacers
    • caps
    • required extra hardware
    • pastic FR suspension hanger

  2. 40T idler - UM737 - $6.99
  3. Motor plate - UM738 - $18.99
  4. Gear cover - UM739 - $6.99

Body:
  1. Blade body - UMB05 - $27.99

Optional Parts:
  1. Lightweigt Blade body - UMB05LW - $31.99
  2. Aluminum FR suspension hanger - UMW705B - $28.99 (may be able to file UMW705 to fit)
  3. Brass FR suspension hanger - UMW725B - $30.99 (looks more different than UMW725..someone confirm?)

Typical Upgrades for new RB6.6 Buyers

UMW701 Aluminum Steering Plate (RB6)
UMW702 Aluminum Crank Arm (RB6)
UMW704-0 V2 Aluminum Rear Hub Set(0/RB6)
UMW705B Aluminum Rear Sus. Holder (RF/RB6.6) or brass UMW725B
UMW707 Aluminum Rear Sus. Holder (RR-Mid)

Nice to have:

UMW723 Aluminum Front Sus Block (Type B/10g/RB6/RT6/SC6).


Aftermarket Parts:

Front Wing: https://www.prolineracing.com/perfor...mount-alum-rb6

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Old 02-08-2013, 06:45 AM
  #5071  
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Originally Posted by Cpt.America View Post
His setup sheet says hes running block position OUT, but pictures show he was running IN... hhmm.
Originally Posted by mdowney View Post
I'll ask Derek to clarify. I'm guessing he probably created the setup sheet after studying Jared's car. Unless JP did it...
Maybe that setting talks about the hole positioning for the caster block insert.
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Old 02-08-2013, 08:01 AM
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Originally Posted by ChadBlanton View Post
I'm running the Avid slipper and I really like it - except it seems I've got it tightened down almost to the end of the spring (if that makes since) - in other words the spring is almost fully collapsed. It's 17.5 blinky mode, and it almost needs to be even tighter ... is the spring worn out already?

Anyone else experience this yet?
hey Chad if your racing on Saturday come see Troy or myself. We are running triads and can help.
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Old 02-08-2013, 08:03 AM
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Originally Posted by Kraig View Post
Maybe that setting talks about the hole positioning for the caster block insert.
I had the same confusion when I first read the editable setup sheet. Are they talking about the position of the block? or the position of the hole? The sheet says "block position"... which certainly doesn't mean the hole (at least I wouldn't think so)... which is why I annotated such on my setup sheet
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Old 02-08-2013, 10:02 AM
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Originally Posted by joeymdz View Post
hey Chad if your racing on Saturday come see Troy or myself. We are running triads and can help.
thanks - but I can usually only make Wednesday nights ... pretty sure its just a kinda weak spring, but I will double check when I tear into my car later
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Old 02-08-2013, 01:42 PM
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Hey ups just brought my exotec steering cranks and arm on the paper it comes with it shows installing the arm with the word exotec toward the front since there is no arrow for my dumb a$$ does that mean thats the way it goes to be like stock. I think yes just want to be sure before i start on it thanks
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Old 02-08-2013, 01:46 PM
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Originally Posted by killa B View Post
Hey ups just brought my exotec steering cranks and arm on the paper it comes with it shows installing the arm with the word exotec toward the front since there is no arrow for my dumb a$$ does that mean thats the way it goes to be like stock. I think yes just want to be sure before i start on it thanks
here ya go
Attached Thumbnails Kyosho Ultima RB6 & RB6.6 Car Thread-exo.jpg  
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Old 02-08-2013, 03:48 PM
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Gratitude
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Old 02-08-2013, 07:51 PM
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Default GHEA Pistons

Okay, I got my hands on some 1.3mm x 4 hole GHEA black delrin pistons. They came with no directions. My question would be which way do the pistons go on the shock shaft. My guess is that the tapered side would be facing away from the threaded end. But when I guess, I usually get it 180 degrees wrong.

Turbo
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Old 02-08-2013, 08:13 PM
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Either way dude..difference between compression and rebound.
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Old 02-08-2013, 08:25 PM
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Originally Posted by Turbo911 View Post
Okay, I got my hands on some 1.3mm x 4 hole GHEA black delrin pistons. They came with no directions. My question would be which way do the pistons go on the shock shaft. My guess is that the tapered side would be facing away from the threaded end. But when I guess, I usually get it 180 degrees wrong.

Turbo
Taper down I would think would make the most since, creating better pack for bigger jumps
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Old 02-08-2013, 09:46 PM
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Originally Posted by Turbo911 View Post
Okay, I got my hands on some 1.3mm x 4 hole GHEA black delrin pistons. They came with no directions. My question would be which way do the pistons go on the shock shaft. My guess is that the tapered side would be facing away from the threaded end. But when I guess, I usually get it 180 degrees wrong.

Turbo
Tapered side down
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Old 02-08-2013, 11:05 PM
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I run them taper side down.
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Old 02-09-2013, 12:44 AM
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When you say tapered side down, I am assuming with the vehicle assembled the taper facing down towards the ground.

??

Turbo
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Old 02-09-2013, 01:18 AM
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Originally Posted by Turbo911 View Post
When you say tapered side down, I am assuming with the vehicle assembled the taper facing down towards the ground.

??

Turbo
yes,

Maybe this will help

http://www.liverc.com/news/new_produ...shock_pistons/
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Old 02-09-2013, 08:06 AM
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Originally Posted by steam View Post
Thanks for info. What I am looking for is the science behind this theory, ie fluid dynamics. I enjoy learning the "what" but I really enjoy learning the "how".

Turbo
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